@article{MMO_1970_22_a3,
     author = {M. S. Burgin},
     title = {Categories with involution, and correspondences in $\gamma$-categories},
     journal = {Trudy Moskovskogo matemati\v{c}eskogo ob\^{s}estva},
     pages = {161--228},
     publisher = {mathdoc},
     volume = {22},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MMO_1970_22_a3/}
}